var _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();

var _typeof = typeof Symbol === "function" && typeof Symbol.iterator === "symbol" ? function (obj) { return typeof obj; } : function (obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol ? "symbol" : typeof obj; };

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

var __decorate = this && this.__decorate || function (decorators, target, key, desc) {
    var c = arguments.length,
        r = c < 3 ? target : desc === null ? desc = Object.getOwnPropertyDescriptor(target, key) : desc,
        d;
    if ((typeof Reflect === "undefined" ? "undefined" : _typeof(Reflect)) === "object" && typeof Reflect.decorate === "function") r = Reflect.decorate(decorators, target, key, desc);else for (var i = decorators.length - 1; i >= 0; i--) {
        if (d = decorators[i]) r = (c < 3 ? d(r) : c > 3 ? d(target, key, r) : d(target, key)) || r;
    }return c > 3 && r && Object.defineProperty(target, key, r), r;
};
var __metadata = this && this.__metadata || function (k, v) {
    if ((typeof Reflect === "undefined" ? "undefined" : _typeof(Reflect)) === "object" && typeof Reflect.metadata === "function") return Reflect.metadata(k, v);
};
var __param = this && this.__param || function (paramIndex, decorator) {
    return function (target, key) {
        decorator(target, key, paramIndex);
    };
};
import { Directive, HostListener, Optional } from '@angular/core';
import { NavController } from './nav-controller';
import { noop } from '../../util/util';
/**
 * @name NavPop
 * @description
 * Directive to declaratively pop the current page off from the
 * navigation stack.
 *
 * @usage
 * ```html
 * <ion-content>
 *
 *  <button ion-button navPop>Go Back</button>
 *
 * </ion-content>
 * ```
 *
 * Similar to {@link /docs/v2/api/components/nav/NavPush/ `NavPush` }
 * @demo /docs/v2/demos/navigation/
 * @see {@link /docs/v2/components#navigation Navigation Component Docs}
 * @see {@link ../NavPush NavPush API Docs}
 */
export var NavPop = function () {
    function NavPop(_nav) {
        _classCallCheck(this, NavPop);

        this._nav = _nav;
        if (!_nav) {
            console.error('nav-pop must be within a NavController');
        }
    }

    _createClass(NavPop, [{
        key: "onClick",
        value: function onClick() {
            // If no target, or if target is _self, prevent default browser behavior
            if (this._nav) {
                this._nav.pop(null, noop);
                return false;
            }
            return true;
        }
    }]);

    return NavPop;
}();
__decorate([HostListener('click'), __metadata('design:type', Function), __metadata('design:paramtypes', []), __metadata('design:returntype', Boolean)], NavPop.prototype, "onClick", null);
NavPop = __decorate([Directive({
    selector: '[navPop]'
}), __param(0, Optional()), __metadata('design:paramtypes', [typeof (_a = typeof NavController !== 'undefined' && NavController) === 'function' && _a || Object])], NavPop);
var _a;